Mackie S408 Repair Manual Download

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Input assembly replacement:

Eight screws need to be removed from

the input assembly (located on the

rear of the cabinet) using the phillips

head screwdriver. Once the screws

are removed, the input assembly may

be loosened by prying a fl at head

screwdriver in between it and the

cabinet. Keep the eight screws in a safe

place.

Summary of Contents for S408

Page 1: ...1 S408 REPAIR MANUAL S408 REPAIR MANUAL...

Page 2: ...mbination wrench Solid workbench Parts needed NOTE not all parts listed below will be needed for your repair 8 Woofer Top Left Part 0011806 pages 3 4 8 Woofer Top Right Part 0011806 pages 5 6 8 Woofer...

Page 3: ...ps head screwdriver Once the screws are removed the woofer may be loosened by prying a flat head screwdriver in between the cabinet and the woofer a good place to start is in the notches located just...

Page 4: ...new woofer part 0011806 where the old one was Follow the same steps as above but backwards 4 to 1 Power up the S408 and the new woofer should now be pumping out glorious lows Awesome you just replace...

Page 5: ...It is for visual consistency More importantly the cables from the printed circuit board to the woofer terminals are quite short it probably would not work otherwise The eight screws should be kept in...

Page 6: ...e new woofer part 0011806 where the old one was Follow the same steps as above but backwards 4 to 1 Power up the S408 and the new woofer should now be pumping out glorious lows Awesome you just replac...

Page 7: ...ay It is for visual consistency More importantly the cables from the printed circuit board to the woofer terminals are quite short it probably would not work otherwise The eight screws should be kept...

Page 8: ...the new woofer part 0011806 where the old one was Follow the same steps as above but backwards 4 to 1 Power up the S408 and the new woofer should now be pumping out glorious lows Awesome you just repl...

Page 9: ...ay It is for visual consistency More importantly the cables from the printed circuit board to the woofer terminals are quite short it probably would not work otherwise The eight screws should be kept...

Page 10: ...e the new woofer part 0011806 where the old one was Follow the same steps as above but backwards 4 to 1 Power up the S408 and the new woofer should now be pumping out glorious lows Awesome you just re...

Page 11: ...he screwdriver as pointed out by the arrows in the picture above The twelve screws should be kept in a safe place 1 1 Six screws need to be removed from each side of the front of the grill twelve scre...

Page 12: ...e positive red and black and negative solid black cables are still attached to the high frequency driver terminals Remove the cables from their terminals simply by pushing down on the terminal and pul...

Page 13: ...e locking washer and finally the bolt 7 7 Keep the four bolts four locking washers and four flat washers in a safe place 8 8 The horn assembly should easily lift right off of the high frequency driver...

Page 14: ...locations in relation to the indents of the high frequency driver circled above Diaphragm replacement 2 2 Follow steps 1 5 of the high frequency driver replacement instructions as the horn will need t...

Page 15: ...ut backwards 6 to 1 Power up the S408 and the new diaphragm should now be pumping out those highs again Sweet you just replaced a diaphragm Diaphragm replacement continued 6 6 This is what the plate a...

Page 16: ...ed on the rear of the cabinet using the phillips head screwdriver Once the screws are removed the input assembly may be loosened by prying a flat head screwdriver in between it and the cabinet Keep th...

Page 17: ...the thru jack Do not force cable removal or connection although needle nose pliers may aid in loosening the crimped cables Input assembly replacement continued 2 2 Once loosened the input assembly may...

Page 18: ...one was Follow the same steps as above but backwards 3 to 1 Remove the serial number from the faulty input assembly as shown in the picture above and place on the new input assembly Power up the S408...

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